Final answer:
To determine the time to apply 8.25 squares of shingles at a rate of 0.8 squares per hour, divide 8.25 by 0.8 to get approximately 10.31 hours.
Step-by-step explanation:
The question is asking how long it will take to apply 8.25 squares of shingles if 0.8 square can be applied in 1 hour. To find the time taken to apply 8.25 squares, you can set up a proportion where 0.8 squares corresponds to 1 hour:
0.8 squares : 1 hour = 8.25 squares : x hours
To solve for x (the number of hours), divide 8.25 by 0.8:
x = 8.25 / 0.8
x = 10.3125 hours
This can be rounded to two decimal places, resulting in x being approximately 10.31 hours, which is answer A.